Nice little TARDIS square, and of course the SHS one is awesome. TMNT? They sure do seem to be popular these days. Other than Supes, Wonder Woman & SHIELD I don't recognize any of the other ones. Oh...wait. Baker Street Irregulars? Is that the 221B w/the smiley face?

Well, you missed the Jedi logo, apeture science (Portal), the Gryphandor logo, and of course pi, periodic table, and caffeine molecule aren't really a reference to an entertainment brand, but still geeky pursuits. And X-men.

Next to Gryffindor is Ravenclaw, and up at the top there are "air" and "fire" emblems from Avatar: The Last Airbender. This is fun! I still don't know the one between caffeine and Jedi, or the one above Aperture Science. And is the skull anything specific, or just, you know, "pirates=awesome!"?